subject
Engineering, 31.03.2020 00:39 juansantos3328

Copper spheres of 20-mm diameter are quenched by being dropped into a tank of water that is maintained at 280 K . The spheres may be assumed to reach the terminal velocity on impact and to drop freely through the water. Estimate the terminal velocity by equating the drag and gravitational forces acting on the sphere. What is the approximate height of the water tank needed to cool the spheres from an initial temperature of 360 K to a center temperature of 320 K?

ansver
Answers: 2

Other questions on the subject: Engineering

image
Engineering, 04.07.2019 08:10, doggo242
Which of the following is an easy way to remember the modified “x” tire rotation? a. nondrive wheels straight, cross the drive wheels b. drive wheels straight, cross the nondrive wheels c. drive wheels crossed, nondrive wheels straight d. drive wheels crossed, nondrive wheels crossed
Answers: 1
image
Engineering, 04.07.2019 18:10, krystabrewer3
What are the two (02) benefits, which may result from a successful implementation of preventive maintenance (pm) program in an organization? (clo3)a)- lean manufacturing b)-overlapping responsibilities c)-the planner is not qualified d)-accurate contractor information e)-reduction in equipment redundancies f)-accurate stores information
Answers: 3
image
Engineering, 04.07.2019 18:20, sarah7984
Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false
Answers: 2
image
Engineering, 04.07.2019 18:20, AnonymousLizard52303
A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.
Answers: 3
You know the right answer?
Copper spheres of 20-mm diameter are quenched by being dropped into a tank of water that is maintain...

Questions in other subjects:

Konu
Mathematics, 25.05.2021 20:00
Konu
Health, 25.05.2021 20:00
Konu
Mathematics, 25.05.2021 20:00